Gas-regulator.



No. 780,719. PATENTED JAN. 24, 1.905. C. JACOBSON. GAS REGULATOR.

APPLIOATION FILED JULY 1.1902. RENEWED JULY 15.1904.

V UNITED STATES Patented January 24, 1905.

PATENT OFFICE.

GAS-REGULATOR.

SPECIFICATION forming part of Letters Patent N0. (80,719, dated January 24, 1905.

Application filed July 1, 1902. Renewed-Tilly 15, 1904;. Serial No. 216,693-

zen of the United States, residing at Warren, in v the county. of Warren and State of Pennsylvania, have invented new and useful Improvements in Gas-Regulators, of which the following is a specification.

My invention relates to gas-regulators of thetype employing a diaphragm and cut-01f for regulating the supply of gas supplied to a gas-engine or for other purposes; and it consists ofthe parts and the constructions and combinations of parts whichI will hereinafter describe and claim.

In the accompanying drawlng the figure illustrates a vertical sectional view of a gasregulator embodying my invention.

This regulator may be of any appropriate size, construction, and configuration,and it has attached to its under side, as by a threaded connection a, a valve-casing A, adapted to operatively contain a balance-valve for controlling the flow of gas through the gas-chamber of the regulator.

The regulator B consists of a casing which is divided horizontally into upper and lower -members, havingflanges between which the outer edge of a flexible diaphragm 9is clamped, said diaphragm extending across the interior of the casing, and thereby dividing the latter into two compartments. In the upper member or cover 2 of the casing is fitted,as by screwing, a plug 7, having a central opening through which passes and is guided a rod' or stem 6, which extends through the center of the diaphragm and lower portion of the casing and into the valve-casing A and has secured to its lower end a balanced valve. This valve consists of abody portion 19, provided with wings let-passage at 15, andgasentering through the same presses with equal force on the valve, and thereby balances said valve, rendering it easy of operation. The casing is also formed with a gas-passage 16, through which a portion of the gas entering the casing when the valve is open passes on its way to the gaschamber of the regulator. In the bottom of the valve-casing is an opening closed by a removable plug 24 and which affords access to the interior of the casing and provides for the removal and insertion of the valve. 7

The central portion of the diaphragm 9 of the regulator is clamped between two disks 1O 11 by means of nuts, one above and'one below, working on a threaded portion of the stem 6, and the portion of the stem above the diaphragm extends through the plug 7 and has its outer portion connected to one end of a spring 4:. Secured to the plug 7 or to some other suitable part is a post or standard 5,

upon which is mounted to slide a collar 3, to which the other end of said spring 1 is attached,

I The collar is clamped in'its adjusted position byv means of a set-screw I).

In the upper membef or cap 2 of the regu-' lator-casing is an opening 8, the purpose of which is to admit air and maintainan atmospheric pressure on top of the diaphragm. The lower member of the casing has an outlet at 12, through which the gas passes and may be conveyed to any desired pointfor instance, to the fuel-supply passage of a gas or air engine. (Not shown.)

From this description it will be manifest that when the pressure above the diaphragm exceeds that below it the valve 19 will be lowered, thereby uncovering the ports of the lower valve or disk 22 and into the passage 16 and finally entering the gas-chamber of the regulator. If the valves 18 and 22 are held tightly against their seats and the pressure below the diaphragm is reduced below the atmospheric pressure on the opposite side, which condition exists when gas is withdrawn through the outlet 12, the said diaphragm will lower and allow the valve to move away from its seats and uncover the gas-passages and allow gas to enter the regulator. When sufficient gas has entered the lower compartment of the regulator to create a pressure in excess of the pressure on top of the diaphragm, said diaphragm will be forced upwardly,-thereby again seating the valves and cutting off the further flow of gas to the regulator. When the gas-pressure in the regulator is again reduced below the atmospheric pressure above, the diaphragm will again lower and the valves will open, repeating the cycle of operation. The pressure of the gas passing through the regulator can thus be so regulated as to be maintained at atmospheric pressure or any pressure below atmospheric pressure, depending on the tension of the spring 4, which tension is regulated by the adjustment of the collar 3 on the post or standard 5, as before mentioned.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a gas-regulator, the combination of a casing having a gas-passage, a diaphragm exposed to atmospheric pressure on one side, a stem fixed to the central portion of the diaphragm and extending above and below the same, a valve secured to one end of the stem and including two disks fastened to a body portion so as to balance each other, and a normally retracting adjusting-spring on the opposite side of the diaphragm and of such tension that it will yield under the pressure of the atmosphere on one side of the diaphragm to open the valve, when the pressure below the diaphragm is below atmospheric pressure, said spring adapted to hold the disks to their seats.

2. The combination in a gas-regulator, of a casing having a diaphragm exposed to atmospheric pressure on one side, and gas inlet and outlet passages, a valve controlling said inletpassage, a stem or rod extending above and below the diaphragm and having one end connected to said valve, a normally retracting spring connected to the opposite end of the stem or red and substantially balancing the diaphragm at atmospheric pressure, and an adjustable collar to which the spring is attached whereby the tension of said spring may be regulated.

3. In a gas-regulator the combination of a casing having an inlet-opening normally open to the atmosphere, and having a discharge, said casing having a gas-passage, a valve controlling said passage, a diaphragm across the casing between said inlet and outlet and exposed at one side to the atmospheric pressure, means for holdingthe diaphragm balanced at substantially atmospheric pressure and the controlling-valve closed, said valve suspended from the diaphragm and opening to admit gas below the diaphragm when the pressure below the latter is below atmospheric pressure.

4. In a gas-regulator, the combination of a casing having gas inlet and' outlet passages and a valve controlling said inlet, a diaphragm fixed across the casing and on one side of which the gas is confined and on the other side the pressure of the atmosphere is maintained, and a spring holding the diaphragm normally balanced at substantially atmospheric pressure and yielding under the pressure of the atmosphere to open the valve when the pressure on the gas side of the diaphragm is reduced below atmospheric pressure.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHARLES J ACOBSON Witnesses:

LEON G. BALL, R. H. DAVIS. 

